CN113541031A

CN113541031A - GIS prevents condensation machine case

Info

Publication number: CN113541031A
Application number: CN202110964777.XA
Authority: CN
Inventors: 刘桂婵; 彭家宁; 黄云光; 边美华; 杨艺云; 张兴森; 梁世容; 卢展强; 李君华
Original assignee: Electric Power Research Institute of Guangxi Power Grid Co Ltd
Current assignee: Electric Power Research Institute of Guangxi Power Grid Co Ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2021-10-22

Abstract

The application discloses GIS prevents condensation machine case relates to GIS quick-witted case technical field, through set up composite gear, motor, rack and activity acanthus on the base at disc structure, wherein rack slidable sets up in base one side, rack and activity acanthus fixed connection, and the output pivot of motor is equipped with the worm, is equipped with the worm wheel on the composite gear and the tip is equipped with the heliciform screw thread, screw thread and rack intermeshing, worm and worm wheel intermeshing. The motor drives the compound gear to rotate and drives the movable blade plates to realize radial reciprocating movement, and the movable blade plates are of fan-shaped structures, so that the movable blade plates can form a whole circle according to sliding distances to seal the ventilation openings or open a certain size according to needs, and the ventilation amount is accurately controlled. This application reasonable in design, the structure is ingenious, and stability is good, the equipment and the maintenance of being convenient for.

Description

GIS prevents condensation machine case

Technical Field

The application relates to the technical field of GIS machine case structures, in particular to a GIS condensation-proof machine case.

Background

Gas Insulated metal enclosed Switchgear (GIS) has the advantages of small floor space, high reliability, high safety, small maintenance workload and the like, and has occupied an important position in power transmission and transformation systems since the 20 th century and the 60 th generation. The GIS mechanism box is used for storing operating mechanisms used by a circuit breaker, a disconnecting switch and the like, prevents the operating mechanisms from being affected with damp or losing efficacy, and is an indispensable core component in the GIS. In practical application, the GIS equipment is influenced by different working conditions such as temperature, humidity, salt fog, vibration and the like for a long time, so that the phenomenon of condensation or water inflow caused by overhigh humidity inside the GIS equipment is easy to occur, and the normal operation of the GIS equipment is influenced. In the prior art, the research on improving the overhigh environment humidity inside the GIS mechanism box is still lacked.

In order to solve the above problems, the applicant filed a GIS agency box in 30/12/2020 entitled CN112803248A, which includes: the temperature and humidity sensor comprises a box body, a temperature and humidity sensor unit, a control unit, a driving unit, an I/O interface, a power supply and at least one opening and closing ventilation hole formed in the box body; the output end of the temperature and humidity sensor unit is connected with the input end of the I/O interface, the first output end of the I/O interface is connected with the input end of the driving unit, the output end of the driving unit is connected with the opening and closing ventilation hole, the second output end of the I/O interface is connected with the control end of the control unit, and the input unit of the control unit is connected with the output end of the power supply; this GIS mechanism case can effectively improve the inside problem that the condensation appears because of humidity is too high of GIS mechanism case through the state of opening and shutting and the angle that opens and shuts of regulation opening and shutting ventilation hole, and outside moisture invades inside phenomenon when can preventing GIS equipment normal operating condition simultaneously. In use, the ventilation holes are of an outward opening and closing type structure, so that the ventilation holes easily occupy extra external space, and are easy to collide and damage if construction is carried out on the periphery, and the opening and closing mode is inconvenient under the condition that the space is limited.

Disclosure of Invention

In order to solve the above problems, the present application is implemented by the following technical solutions:

a GIS anti-condensation case comprises a case body, wherein the case body is provided with a case door and a ventilation hole, a temperature and humidity sensor unit, a control unit, a driving unit, an I/O interface and a power supply are arranged in the case body, a rotary opening and closing device is fixedly arranged in the case body, and the rotary opening and closing device is matched with and arranged corresponding to the ventilation hole;

the rotary opening and closing device comprises a base, wherein the base is of a disc structure;

a rotary hole is formed in the center of the base, and a composite gear is rotatably arranged in the rotary hole;

the composite gear comprises an inner gear sleeve, and the inner gear sleeve is of a cylindrical structure;

a worm wheel is fixedly sleeved on the periphery of one end of the inner gear sleeve, and a spiral thread is arranged at the end part of the other end of the inner gear sleeve;

the inner gear sleeve is rotatably arranged in the rotary hole in a penetrating way; the inner sleeve of the gear wheel penetrates through the whole rotary hole.

A motor is fixedly arranged on one side of the base, a worm is fixedly arranged on an output rotating shaft of the motor, and the worm is meshed with the worm wheel;

the other side of the base is fixedly provided with at least two sliding blocks which are symmetrically arranged around the rotating hole in a surrounding manner;

a rack is arranged in the sliding block in a sliding mode in a penetrating mode, and the rack is meshed with the thread;

the back of the rack is fixedly provided with movable vanes which are of fan-shaped sheet structures, all the movable vanes can jointly form a disc, and the disc can seal the rotary hole;

the other side of the base is fixedly provided with a fixed connecting ring, the fixed connecting ring is of an annular structure, and the radius of the inner ring of the fixed connecting ring is larger than the diameter of the movable blade plate;

one side, far away from the base, of the fixed connecting ring is fixedly connected with the inner wall of the box body, and the center of the fixed connecting ring corresponds to the ventilation hole. The during operation, the control unit is controlled the rotation type device that opens and shuts according to humidity transducer's numerical value, when the ventilation hole is opened to needs and is ventilated, the control motor drives the worm corotation, the worm drives the worm wheel, gear inner skleeve, screw corotation, because screw thread and rack intermeshing, the rack is driven along the outside removal of slider to the base by the screw thread, because the screw thread is spiral helicine structure, distribute at whole gear inner skleeve tip, consequently, can drive all racks simultaneous movement, and then drive all movable vane outwards removal, finally movable vane slowly separates and opens the passageway that forms one and can let the circulation of air with the central line in commentaries on classics hole. When the closing is just opposite, the motor is controlled to rotate reversely, and the rack moves in the opposite direction to close. The structure does not need to extend outwards, and the whole device is parallel to the side plate of the box body, so that the external use is not influenced. The structure is very ingenious, the control is convenient, and the table is easy.

Preferably, the cross section of the sliding block is of a C-shaped structure, the movable blade plate comprises a blade plate body, the blade plate body is of an equilateral sector structure, a rack fixing guide rail is fixedly arranged along the radial direction on the center line of the blade plate body, and one side of the rack fixing guide rail, which is far away from the blade plate body, is fixedly connected with the rack;

the width of the rack fixed guide rail is smaller than that of the rack, and the rack fixed guide rail can be simultaneously arranged in the C-shaped sliding block in a penetrating mode. The structure can prevent the movable blade plate and the rack from falling off, and the movable blade plate and the rack can only move back and forth and cannot move towards other directions under the limitation of the C-shaped sliding block. Therefore, the design of additional positioning and guiding structures is saved, the structure of the whole device is simplified, and the manufacturing cost is indirectly reduced.

Preferably, the electric motor is a dc reduction motor having a reduction gear box. The direct current speed reducing motor with the speed reducing gear box is a common product in the market, and is simple to control, low in cost and convenient to operate.

Preferably, the number of the sliding blocks is four, and the four sliding blocks are distributed on the periphery of the rotary hole at intervals of 90 degrees;

the movable blade plate is also provided with four blocks, and each block is one fourth of the size of a whole circle. Such a structure is relatively easy to machine and assemble.

Preferably, the base and the slider are made of nylon material integrally. This can reduce the number of assembly steps and further reduce the cost.

Preferably, the fixed connecting ring is made of nylon material, and is provided with a fixed screw hole for being fixedly connected with the box body.

Preferably, the number of the vent holes is two, namely a left vent hole is formed in the left side of the box body, and a right vent hole is formed in the right side of the box body;

the left side ventilation hole with the right side ventilation hole all corresponds the fixed rotation type device that opens and shuts that is provided with. Such structure can both drive the air flow in the whole box when the circulation of air is convenient for, improves ventilation efficiency.

Preferably, a rack position detection sensor is further disposed on the slider and is used for detecting a displacement signal of the rack.

Preferably, the rack position detection sensor is a hall sensor, the rack is made of a nylon material, and a permanent magnet for detecting the position is adhered to the rack. The moving position of the rack can be judged by the induction of the Hall sensor to the permanent magnet, so that the opening and closing size of the blade plate can be controlled.

Preferably, the rack position detection sensor is electrically connected to the control unit.

This application is through setting up composite gear, motor, rack and activity acanthus on the base of disc structure, and wherein rack slidable sets up in base one side, rack and activity acanthus fixed connection, and the output pivot of motor is equipped with the worm, is equipped with the worm wheel on the composite gear and the tip is equipped with the heliciform screw thread, screw and rack intermeshing, worm and worm wheel intermeshing. The motor drives the compound gear to rotate and drives the movable blade plates to realize radial reciprocating movement, and the movable blade plates are of fan-shaped structures, so that the movable blade plates can form a whole circle according to sliding distances to seal the ventilation openings or open a certain size according to needs, and the ventilation amount is accurately controlled. This application reasonable in design, the structure is ingenious, and stability is good, the equipment and the maintenance of being convenient for.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the embodiment provided in the present application;

FIG. 2 is a perspective view of another perspective of an embodiment provided herein;

FIG. 3 is a perspective view of an embodiment of a rotary opening and closing device provided herein;

FIG. 4 is a front view of a rotary type opening and closing device in an embodiment provided by the present application;

FIG. 5 is a top view of a rotary type opening and closing device according to an embodiment of the present disclosure;

FIG. 6 is a rear view of a rotary type opening and closing device in an embodiment provided herein;

FIG. 7 is an exploded view of the rotary shutters in the embodiment provided herein;

FIG. 8 is an exploded view of another perspective of the rotary shutters of the embodiments provided herein;

FIG. 9 is an enlarged partial schematic view of the coating 8;

FIG. 10 is a schematic view of an embodiment of the present disclosure with the base and movable blades assembled;

fig. 11 is a partially enlarged schematic view of fig. 10.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described clearly and completely with reference to fig. 1 to 11 of the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-11, a GIS condensation prevention machine case comprises a case body 1, the case body 1 is provided with a case door 10 and a ventilation hole, a temperature and humidity sensor unit, a control unit, a driving unit, an I/O interface and a power supply are arranged in the case body 1, the prior art can be used in the aspect of control, and too many changes are not needed. The box 1 internal fixation is provided with rotation type device 2 that opens and shuts, rotation type device 2 that opens and shuts with the ventilation hole matches and corresponds the setting. In this embodiment, the ventilation holes are provided with two, and are divided into a left ventilation hole 11 on the left side of the box body 1, and a right ventilation hole 12 on the right side of the box body 1, and the left ventilation hole 11 and the right ventilation hole 12 are both correspondingly and fixedly provided with a rotary opening and closing device 2. Such structure can both drive the air flow in the whole box when the circulation of air is convenient for, improves ventilation efficiency.

As shown in fig. 3 to 11, the rotary opening and closing device 2 includes a base 20, the base 20 is a disc structure, a rotation hole 200 is formed in the center of the base 20, and a composite gear 21 is rotatably disposed in the rotation hole 200.

As shown in fig. 7, the composite gear 21 includes an inner gear sleeve 210, the inner gear sleeve 210 is a cylindrical structure, a worm wheel 211 is fixedly sleeved on the periphery of one end of the inner gear sleeve 210, a spiral thread 212 is provided at the end of the other end of the inner gear sleeve 210, the inner gear sleeve 210 is rotatably inserted into the rotary hole 200, and the inner gear sleeve 210 penetrates through the whole rotary hole 200.

A motor 22 is fixedly arranged on one side of the base 20, and a worm 220 is fixedly arranged on an output rotating shaft of the motor 22. The motor 22 is a dc reduction motor having a reduction gear box. The direct current speed reducing motor with the speed reducing gear box is a common product in the market, and is simple to control, low in cost and convenient to operate. The worm 220 is engaged with the worm wheel 211. The other side of base 20 is fixed and is provided with slider 201, slider 201 is provided with at least two, respectively the symmetry ring is established change hole 200 around. A rack 25 is arranged in the sliding block 201 in a sliding mode, and the rack 25 is meshed with the thread 212. The back of rack 25 is fixed with movable leaf plate 23, movable leaf plate 23 is fan-shaped sheet structure, and all movable leaf plates 23 can constitute a disc jointly, and this disc can with commentaries on classics hole 200 seals, the fixed go-between 24 that is provided with of opposite side of base 20, fixed go-between 24 is the annular structure, and its inner circle radius is greater than the diameter of movable leaf plate 23, one side that base 20 was kept away from to fixed go-between 24 with box 1 inner wall fixed connection, the center of fixed go-between 24 with the ventilation hole corresponds. The fixed connection ring 24 is made of nylon material, and is provided with a fixed screw hole for being fixedly connected with the box body.

When the device works, the control unit controls the rotary opening and closing device 2 according to the value of the humidity sensor, when the ventilation hole needs to be opened for ventilation, the control motor 22 drives the worm 220 to rotate positively, the worm 220 drives the worm wheel 211, the inner gear sleeve 210 and the threads 212 to rotate positively, the threads 212 and the racks 25 are meshed with each other, the racks 25 are driven by the threads 212 to move towards the outside of the base 20 along the sliding block 201, because the threads 212 are of spiral structures and are distributed at the end part of the whole inner gear sleeve 210, all the racks can be driven to move together at the same time, all the movable vane plates 23 are driven to move outwards, and finally the movable vane plates 23 are slowly separated and are opened to form a channel capable of allowing air to circulate by using the central line of the ventilation hole 200. When the closing is just opposite, the motor is controlled to rotate reversely, and the rack moves in the opposite direction to close. The structure does not need to extend outwards, and the whole device is parallel to the side plate of the box body, so that the external use is not influenced. The structure is very ingenious, the control is convenient, and the table is easy.

In an embodiment, the cross section of the sliding block 201 is a C-shaped structure, the movable vane plate 23 includes a vane plate body 230, the vane plate body 230 is an equilateral sector structure, a rack fixing rail 231 is fixedly disposed along a radial direction on a center line of the vane plate body 230, and a side of the rack fixing rail 231 away from the vane plate body 230 is fixedly connected to the rack 25. The width of the rack fixing rail 231 is smaller than the width of the rack 25, and the rack 25 and the rack fixing rail 231 can be simultaneously inserted into the C-shaped slider 201. Such a structure can prevent the movable vane 23 and the rack 25 from falling off, and the movable vane and the rack are restricted by the C-shaped slider 201 to move only in the forward and backward direction and cannot move in other directions. Therefore, the design of additional positioning and guiding structures is saved, the structure of the whole device is simplified, and the manufacturing cost is indirectly reduced.

The four sliding blocks 201 are arranged at intervals of 90 degrees and distributed on the periphery of the rotary hole 200. The movable blades 23 are also provided in four pieces, each of which is a quarter of a full circle. Such a structure is relatively easy to machine and assemble. The base 20 and the sliding block 201 are made of nylon material integrally. This can reduce the number of assembly steps and further reduce the cost. A rack position detection sensor is further arranged on the sliding block 201 and used for detecting a displacement signal of the rack 25. The rack position detection sensor is a hall sensor, the rack 25 is made of a nylon material, and a permanent magnet for detecting the position is adhered to the rack. The moving position of the rack can be judged by the induction of the Hall sensor to the permanent magnet, so that the opening and closing size of the blade plate can be controlled. The rack position detection sensor is electrically connected with the control unit.

This application is through setting up composite gear 21, motor 22, rack 25 and activity acanthus 23 on base 20 at disc structure, and wherein rack 25 slidable sets up in base one side, rack 25 and activity acanthus fixed connection, and motor 22's output pivot is equipped with the worm, is equipped with the worm wheel on the composite gear and the tip is equipped with the heliciform screw thread, screw thread and rack intermeshing, worm and worm wheel intermeshing. The motor 22 drives the compound gear 21 to rotate and drives the movable blade plates 23 to realize radial reciprocating movement, and as the movable blade plates 23 are of fan-shaped structures, the movable blade plates 23 can form a whole circle according to sliding distances to seal a ventilation opening, or open a certain size according to needs, so that the ventilation amount is accurately controlled. This application reasonable in design, the structure is ingenious, and stability is good, the equipment and the maintenance of being convenient for.

Claims

1. The utility model provides a GIS prevents condensation machine case, includes box (1), box (1) is provided with chamber door (10) and ventilation hole, is provided with temperature and humidity sensor unit, the control unit, drive unit, IO interface and power in box (1), its characterized in that:

a rotary opening and closing device (2) is fixedly arranged in the box body (1), and the rotary opening and closing device (2) is matched and correspondingly arranged with the vent hole;

the rotary opening and closing device (2) comprises a base (20), and the base (20) is of a disc structure;

a rotating hole (200) is formed in the center of the base (20), and a composite gear (21) is rotatably arranged in the rotating hole (200);

the composite gear (21) comprises an inner gear sleeve (210), and the inner gear sleeve (210) is of a cylindrical structure;

a worm wheel (211) is fixedly sleeved on the periphery of one end of the inner gear sleeve (210), and a spiral thread (212) is arranged at the end part of the other end of the inner gear sleeve (210);

the inner gear sleeve (210) is rotatably arranged in the rotary hole (200) in a penetrating way;

a motor (22) is fixedly arranged on one side of the base (20), a worm (220) is fixedly arranged on an output rotating shaft of the motor (22), and the worm (220) is meshed with the worm wheel (211);

the other side of the base (20) is fixedly provided with at least two sliding blocks (201), and the at least two sliding blocks (201) are symmetrically arranged around the rotating hole (200) respectively;

a rack (25) penetrates through the sliding block (201) in a sliding mode, and the rack (25) is meshed with the thread (212);

the back of the rack (25) is fixedly provided with movable vanes (23), the movable vanes (23) are of a fan-shaped sheet structure, all the movable vanes (23) can jointly form a disc, and the disc can seal the rotary hole (200);

a fixed connecting ring (24) is fixedly arranged on the other side of the base (20), the fixed connecting ring (24) is of an annular structure, and the radius of the inner ring of the fixed connecting ring is larger than the diameter of the movable blade plate (23);

one side, far away from the base (20), of the fixed connecting ring (24) is fixedly connected with the inner wall of the box body (1), and the center of the fixed connecting ring (24) corresponds to the vent hole.

2. The GIS condensation-preventing cabinet according to claim 1, characterized in that:

the cross section of the sliding block (201) is of a C-shaped structure, the movable blade plate (23) comprises a blade plate body (230), the blade plate body (230) is of an equilateral sector structure, a rack fixing guide rail (231) is fixedly arranged along the radial direction on the center line of the blade plate body (230), and one side, far away from the blade plate body (230), of the rack fixing guide rail (231) is fixedly connected with the rack (25);

the width of the rack fixing guide rail (231) is smaller than that of the rack (25), and the rack (25) and the rack fixing guide rail (231) can be simultaneously arranged in the C-shaped sliding block (201) in a penetrating mode.

3. The GIS condensation-preventing cabinet according to claim 1, characterized in that:

the motor (22) is a direct current speed reduction motor with a speed reduction gear box.

4. The GIS condensation-preventing cabinet according to claim 1, characterized in that:

the four sliding blocks (201) are arranged and distributed on the periphery of the rotary hole (200) at intervals of 90 degrees;

the movable blade plates (23) are correspondingly arranged into four blocks, and the four movable blade plates (23) are equal in size and are all a quarter of a whole circle.

5. The GIS condensation-preventing cabinet according to claim 1, characterized in that:

the base (20) and the sliding block (201) are made of nylon materials integrally.

6. The GIS condensation-preventing cabinet according to claim 1, characterized in that:

the fixed connecting ring (24) is made of nylon materials, and is provided with a fixed screw hole for being fixedly connected with the box body.

7. The GIS condensation-preventing cabinet according to claim 1, characterized in that:

the two ventilation holes are formed and divided into a left ventilation hole (11) formed in the left side of the box body (1) and a right ventilation hole (12) formed in the right side of the box body (1);

the left side ventilation hole (11) and the right side ventilation hole (12) are both correspondingly and fixedly provided with a rotary opening and closing device (2).

8. The GIS condensation-preventing cabinet according to claim 1, characterized in that:

and a rack position detection sensor is also arranged on the sliding block (201) and is used for detecting a displacement signal of the rack (25).

9. The GIS condensation-preventing cabinet according to claim 8, characterized in that:

the rack position detection sensor is a Hall sensor, the rack (25) is made of a nylon material, and a permanent magnet for detecting the position is pasted on the rack.

10. The GIS condensation-preventing cabinet according to claim 8, characterized in that:

the rack position detection sensor is electrically connected with the control unit.